Re: Falling off the wagon

: From a previous discussion (look under "wagon" in the discussion archives):

: Various language sites state that The "wagon" in "on the wagon" refers to a fixture of America's past, the water wagon. Before roads were routinely paved, municipalities would dispatch horse-drawn water wagons to spray the streets in order to prevent the clouds of dust that traffic would otherwise cause. Anyone who had sworn abstinence from alcohol (and would presumably be drinking largely water from then on) was said to have "climbed aboard the water wagon," later shortened to "on the wagon."

ON THE WAGON - "The original version of this expression 'on the water wagon' or 'water cart,' which isn't heard anymore, best explains the phrase. During the late 19th century, water carts drawn by horses wet down dusty roads in the summer. At the height of the Prohibition crusade in the 1890s men who vowed to stop drinking would say that they were thirsty indeed but would rather climb aboard the water cart to get a drink than break their pledges. From this sentiment came the expression 'I'm on the water cart,' I'm trying to stop drinking, which is first recorded in, of all places, Alice Caldwell Rice's 'Mrs. Wiggs of the Caggage Patch' , where the consumptive Mr. Dick says it to old Mrs. Wiggs. The more alliterative 'wagon' soon replaced cart in the expression and it was eventually shortened to 'on the wagon.' 'Fall off the (water) wagon' made its entry into the language almost immediately after its abstinent sister." From the "Encyclopedia of Word and Phrase Origins" by Robert Hendrickson (Facts on File, New York, 1997).